CN113252301A

CN113252301A - Underwater booster test fixture and test device

Info

Publication number: CN113252301A
Application number: CN202110686476.5A
Authority: CN
Inventors: 魏建仓; 赵云; 吴石梁; 董焰; 宋研浩; 王书军; 李�杰; 代海存; 曹建胜; 赵梦楠; 王宏源
Original assignee: Shenzhilan Tianjin Underwater Intelligent Technology Co ltd
Current assignee: Shenzhilan Tianjin Underwater Intelligent Technology Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-08-13

Abstract

The application relates to an underwater booster test fixture and a test device. The support is at least partially arranged under water; the jacking part is connected to the support and arranged underwater, and is provided with a clamping position for limiting the underwater booster; the switch part is connected to the support and comprises an operating part and a pressing part, the operating part is higher than the water surface, the pressing part is inserted into the underwater booster, the pressing part is connected to the operating part, and the operating part acts to enable the pressing part to movably abut against a switch position of the underwater booster. According to the invention, the operating part can be operated on water, power is transmitted to the water through the pressing part, the problem of electric connection such as short circuit easily caused by a cable is avoided, the line loss and the voltage drop caused by the cable are also avoided, the accuracy of test data is favorably ensured, the actual use condition of actual personnel is completely simulated by pressing operation, more modes of test ranges are covered, adjustment in each test is not needed, the test accuracy is improved, and the great test efficiency can be improved.

Description

Underwater booster test fixture and test device

Technical Field

The application relates to the field of underwater testing, in particular to an underwater booster testing clamp and an underwater booster testing device.

Background

The underwater booster is a device for providing power in water, and the underwater propeller can provide a wider moving range for a swimmer and provide great convenience for swimming and diving. The underwater booster needs to test the thrust performance after being developed, the test of the existing underwater propeller can be carried out through a simulation device, the underwater booster is mostly placed in a water tank or a water tank, and the underwater booster is connected and primarily fixed through a support. And starting the underwater booster when the test is started, and obtaining the propelling force according to the water flow resistance.

The existing starting method of the underwater booster is that a power line of a power supply system of the booster is lengthened and led out of the water surface, an external power supply is used for supplying power, a signal line is led out of the water surface, and a starting instruction is sent by an upper computer to control the small booster to start. However, the existing small underwater booster is basically powered by a waterproof lithium ion battery, line loss and voltage drop can be caused by the fact that the booster is powered by an external power line, the deviation between test data and real data is large, and the external power supply can have high safety risks in the process of wiring and water entering, such as short circuit and high environment humidity, which cause power connection.

In view of the above, it is desirable to improve the existing testing device for underwater thrusters so as to improve the accuracy of the testing data.

Disclosure of Invention

In order to solve the technical problem that the test data of the underwater booster testing device in the prior art have large deviation, the application provides an underwater booster test fixture and a testing device.

In a first aspect, the present invention provides an underwater booster test fixture, including:

a support, the support being at least partially disposed underwater;

the clamping piece is connected to the support and arranged under water, and is provided with a clamping position for limiting the underwater booster; and the number of the first and second groups,

the switch part is connected to the support and comprises an operating part and a pressing part, the operating part is higher than the water surface, the pressing part is inserted into the underwater booster, the pressing part is connected to the operating part, and the operating part acts to enable the pressing part to movably abut against the switch position of the underwater booster.

In a preferred embodiment, the follower comprises:

the first pressure lever is connected with the operating piece; and the number of the first and second groups,

and the two second pressing rods are detachably connected with the first pressing rod and movably abutted against the switch position of the underwater booster.

Further, in the above embodiment, a pressing portion is disposed at a bottom of the second pressing rod, the pressing portion is formed by extending the second pressing rod to a switch position of the underwater booster, and a thickness of the pressing portion gradually decreases along with an extending direction.

In a preferred embodiment, the operating member and the pressing member are connected by a link, and the bracket, the link, the operating member and the pressing member are sequentially rotatably connected.

Further, in the above embodiment, the operating member includes:

the operating arm is provided with an operating part and an assembling part, the assembling part is provided with a first rotating position and a second rotating position, the first rotating position and the pressing piece form a rotating pair, and the second rotating position and the connecting rod form a rotating pair; and the number of the first and second groups,

a handle disposed on the operating portion.

In a preferred embodiment, the link comprises:

the clamping arms are arranged in pairs, and the bracket, the clamping arms, the operating piece and the pressing piece are sequentially connected in a rotating manner; and the number of the first and second groups,

and the connecting arm is connected between the two clamping arms.

In a preferred embodiment, the bracket is further provided with a guide member, the guide member comprises a guide seat and a clamping portion, the clamping portion is detachably arranged on the guide seat, the guide seat and the clamping portion form a guide hole with adjustable size, and the pressing member passes through the guide hole.

In a preferred embodiment, the clamping position comprises:

the two clamping grooves are symmetrically arranged and are matched with the clamped part of the underwater booster; and the number of the first and second groups,

the two jacking parts are arranged on one side of the clamping groove, and the jacking parts are movably abutted against the clamped part of the underwater booster.

Further, in the above embodiment, the pressing member includes:

the clamping seat is provided with a first end and a second end, and a positioning groove is formed between the first end and the second end;

the pressing rod is rotatably arranged at the first end and provided with a positioning part; and the number of the first and second groups,

the pressing piece is rotatably arranged at the second end and is rotatably connected with the pressing rod;

the pressing rod rotates forwards to drive the pressing piece to rotate reversely and abut against the clamped part of the underwater booster, and the positioning part abuts against the positioning groove; the pressing rod rotates reversely to drive the pressing piece to rotate positively and release the butt joint with the clamped part of the underwater booster, and the positioning part and the positioning groove release the butt joint.

In a second aspect, the invention provides a testing device for an underwater booster, which comprises a water tank and a testing frame arranged on the water tank, wherein the testing frame is provided with the testing clamp for the underwater booster with the structure.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: the underwater booster is limited by arranging the clamping position, so that the stability of the underwater booster in the measuring process is ensured. The underwater booster is characterized in that a switch part is arranged on the clamp, the switch part comprises an operating part and a pressing part, the operating part is higher than the water surface and used for applying external force, and the pressing part can enter the underwater booster to start the underwater booster. The pressing piece is abutted to the switch position of the underwater booster through the operating piece, and then the underwater booster is started; the pressing piece is separated from the switch position of the underwater booster through the action of the operating piece, and then the underwater booster is turned off. The operating parts is operation on water, transmits power to under water through the casting die, convenient operation, and the security is high to can realize that accurate pressing opens or closes the boost motor under water.

This application adopts the electric connection structure who has replaced the cable at the physical mechanical structure of the push type on water, has avoided allies oneself with the electric problem such as short circuit that the cable produced easily, has also avoided line loss and pressure drop that the cable caused, is favorable to guaranteeing test data's accuracy, avoids producing the deviation with true data. The push type operation of casting die has simulated actual personnel's true in service behavior completely, compares the test mode that the cable circular telegram was opened, and the test mode is more direct accurate, can cover the test range of more modes. The pressing structure of the pressing piece does not need to be adjusted in each test, the influence of voltage and current does not need to be considered, the universality is strong, the operation is simple, the test precision is improved, and meanwhile, the test efficiency can be greatly improved. The physical mechanical structure of push type need not to use instruments such as external power supply, helps avoiding the influence that other instrument and equipment caused the test.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of an underwater booster test fixture provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a subsea booster provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of the underwater booster provided in the embodiment of the present application after the underwater booster is limited by the underwater booster test fixture;

FIG. 4 is a schematic structural diagram of a portion of a support frame of a test fixture of the underwater booster provided in an embodiment of the present application;

FIG. 5 is a partial schematic structural diagram of a switch part of a testing fixture for an underwater booster according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a clamping member of an underwater booster test fixture provided in an embodiment of the present application;

fig. 7 is a schematic structural diagram of a testing device for an underwater booster provided in an embodiment of the present application.

Wherein the reference numerals are:

100. a support; 110. a base; 120. a guide member; 121. a guide seat; 122. a clamping portion; 200. a clamping member; 210. a clamping groove; 220. a jacking member; 221. a clamping seat; 2211. a first end; 2212. a second end; 2213. positioning a groove; 222. a hold down bar; 2221. a positioning part; 223. a compression member; 2231. a strut; 2232. a pressure head; 300. a switch member; 310. an operating member; 3101. a first rotation position; 3102. a second rotational position; 311. an operating arm; 312. a handle; 320. pressing parts; 321. a first pressure lever; 322. a second compression bar; 3221. a pressing part; 323. a connecting plate; 324. a clamping plate; 330. a connecting rod; 331. a clamp arm; 332. a connecting arm; 400. a water tank; 500. a test jig; 600. an underwater booster; 610. a main body; 620. a wing plate; 630. a holding rod; 640. a switch bit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The test of the underwater booster 600 needs to be performed underwater, the thrust of the underwater booster 600 to water in different modes after being started is obtained, data are measured through a sensor generally, and then the data are uploaded to a data acquisition system of an upper computer through a network. In an actual test, the underwater booster 600 is generally positioned, a power line of a power supply system of the underwater booster 600 is lengthened, an external power supply is used for supplying power, a signal line is connected to a corresponding test instrument and then placed in a proper water depth, and at the moment, the power line and the signal line can be led out of the water surface. And then the upper computer sends a starting instruction to control the underwater booster 600 to start. The underwater line connection mode has high assembly requirements, and more instruments need to be connected, so that the test cost is greatly improved. The power supply needs to be debugged in each test in the test process, so that the test efficiency is low. In addition, the method of using the external power line to supply power to the booster can cause line loss and voltage drop, and the deviation of test data and real data is large.

In order to solve the technical problem that the testing data of the underwater booster testing device in the prior art have large deviation, referring to fig. 1-7, the application provides a testing fixture and a testing device for the underwater booster, the underwater booster 600 is positioned so as to be convenient for performance testing, the underwater booster 600 can be controlled to be started and closed by utilizing the operation of a mechanical structure on water, no additional connecting line is needed, the testing precision is improved, and the testing structure is simplified. The invention is explained in detail below with reference to the figures and the specific examples.

Referring to fig. 1-3, in a first aspect, the present invention provides a test fixture for an underwater booster, including a support 100, a clamping member 200, and a switch member 300. The support 100 is at least partially disposed under water. The clamping piece 200 is connected to the support 100 and is arranged underwater, and the clamping piece 200 is provided with a clamping position for limiting the underwater booster 600. Referring to fig. 4, the switch member 300 is connected to the support 100 and includes an operating member 310 that is above the water surface and a pressing member 320 that is inserted into the underwater, and the operating member 310 operates to make the pressing member 320 movably abut against the switch position 640 of the underwater booster 600.

According to the technical scheme, the underwater booster 600 is limited by arranging the clamping position, so that the stability of the underwater booster 600 in the measurement process is ensured. The switch member 300 is arranged on the fixture, the switch member 300 comprises an operating member 310 and a pressing member 320, the operating member 310 is higher than the water surface and is used for applying external force, and the pressing member 320 can enter the water to start the underwater booster 600. The pressing member 320 is abutted to the switch position 640 of the underwater booster 600 through the operating member 310, so that the underwater booster 600 is started; the actuation of operator 310 disengages pressure member 320 from switch position 640 of subsea booster 600 and subsea booster 600 is turned off. The operation piece 310 operates on water, power is transmitted to underwater through the pressing piece 320, operation is convenient, safety is high, and the underwater booster 600 can be accurately pressed to be turned on or turned off.

This application adopts the electric connection structure who has replaced the cable at the physical mechanical structure of the push type on water, has avoided allies oneself with the electric problem such as short circuit that the cable produced easily, has also avoided line loss and pressure drop that the cable caused, is favorable to guaranteeing test data's accuracy, avoids producing the deviation with true data. The push type operation of casting die 320 has simulated actual personnel's true in service behavior completely, compares the test mode that the cable circular telegram was opened, and the test mode is more direct accurate, can cover the test range of more modes. The pressing structure of the pressing piece 320 does not need to be adjusted in each test, the influence of voltage and current does not need to be considered, the universality is strong, the operation is simple, the test precision is improved, and meanwhile, the test efficiency can be greatly improved. The physical mechanical structure of push type need not to use instruments such as external power supply, helps avoiding the influence that other instrument and equipment caused the test.

Referring to fig. 1, considering that the occupied space and the center of gravity of the clamping position are changed after the underwater booster 600 is installed and fixed, in order to keep the upper and lower balance of the support 100, the support 100 may be configured to have an upper and lower two-stage structure, and the lower stage structure is appropriately offset to one side to reserve the clamping space and ensure that the lower end of the pressing member 320 is aligned with the switch position 640 of the underwater booster 600 after the clamping position is installed in place.

Referring to FIG. 4, in a preferred embodiment, the compression member 320 includes a first compression bar 321 and a second compression bar 322. The first pressing lever 321 is connected to the operating member 310. The number of the second pressure levers 322 is two, and the second pressure levers 322 are detachably connected to the first pressure levers 321, and the second pressure levers 322 are movably abutted to the switch positions 640 of the underwater booster 600. In the present embodiment, the pressing member 320 is provided as a combined structure of the first pressing rod 321 and the second pressing rod 322 in consideration of the water depth when the underwater booster 600 is tested. The first pressure lever 321 is directly connected with the operation member 310, and then the power is transmitted to the second pressure lever 322, and the second pressure lever 322 abuts against the switch position 640 of the underwater booster 600, so as to complete the opening action. Due to the operation characteristics of the underwater booster 600, a user can open the underwater booster by holding the underwater booster with both hands, and therefore the number of the second pressing rods 322 is correspondingly two.

In order to detachably connect the first pressure lever 321 and the second pressure lever 322, a connecting plate 323 and a clamping plate 324 are provided, one end of the connecting plate 323 is connected with one second pressure lever 322, the other end of the connecting plate is connected with the other second pressure lever 322, a connecting hole for the first pressure lever 321 to enter is formed in the middle of the connecting plate 323, and the first pressure lever 321 is fixed in the connecting hole through the clamping plate 324. The clamping plate 324 is fastened by bolts, and the detachable connection mode allows the adjustment of the matching state, the adjustment of the matching position of the first pressure lever 321 and the second pressure lever 322, and the replacement of the first pressure lever 321 and the second pressure lever 322. Preferably, the coupling plate 323 is provided with an assembly space for the clamping plate 324 to be fixed, and the clamping plate 324 is kept flush with the outer side surface of the coupling plate 323 after assembly is completed, so that the clamping plate 324 can be prevented from loosening to some extent.

Further, in the above embodiment, the bottom of the second pressure lever 322 is provided with the pressing portion 3221, and the pressing portion 3221 is formed by extending the second pressure lever 322 to the switch position 640 of the underwater booster 600, and the thickness of the pressing portion 3221 gradually decreases along the extending direction. In order to further improve the simulation performance, the pressing portion 3221 is provided to simulate the shape of a human hand, and the structure of the second pressing lever 322 is close to the operation mode of the human hand. The pressing portion 3221 is disposed toward the front of the underwater booster 600 by the second pressing rod 322, and has a gradually decreasing thickness. When the pressing member 320 is pressed down, the force of the second pressing rod 322 is transmitted to the pressing portion 3221, which is very similar to the force application form of a human hand, and the accuracy of the test is greatly improved. Preferably, the structure of the second pressing rod 322 in this embodiment is not a vertical rod, but an approximate C-shaped structure, and such a structure may provide a space for installing the underwater booster 600.

Referring to fig. 4 and 5, in a preferred embodiment, the operating member 310 and the pressing member 320 are connected by a link 330, and the bracket 100, the link 330, the operating member 310 and the pressing member 320 are rotatably connected in turn. In order to realize the movement of the pressing member 320 through simple actions, the connecting rod 330, the operating member 310 and the pressing member 320 form a connecting rod mechanism, so that the rotating action of the operating member 310 is converted into the lifting action of the pressing member 320, the operating member 310 is a crank of the connecting rod mechanism, the rotating angle can be set to be 0-180 degrees, the operating member 310 rotates to a certain angle, and the pressing member 320 moves downwards for a certain distance to abut against the switch position 640 of the underwater booster 600. The linkage mechanism allows the operating member 310 to operate in a simpler manner and allows greater control over the distance traveled by the compression member 320.

It should be noted that, in order to position the pressing member 320 at a certain position, the positioning structure can be used to ensure that the operating member 310 is fixed, and prevent the operating member 310 from rebounding due to a force, so that the pressing member 320 abuts against the switch position 640 and maintains the abutting state. The positioning structure is generally arranged as a boss or groove structure, or a sealing gasket is used for increasing the friction force to realize the positioning. The positioning structure may be disposed on the connecting rod 330 to control the operation member 310 to move within a predetermined rotation angle range.

Referring to fig. 4 and 5, preferably, in the above embodiment, the bracket 100 is provided with the base 110, the pressing member 320 is liftably inserted through the base 110, and the link 330 is rotatably connected between the base 110 and the operating member 310. The base 110 provides a mounting carrier for the operating element 310 and the pressing element 320, and since the base 110 is spaced from the bracket 100, interference of the bracket 100 on the action track of the operating element 310 can be reduced. The base 110 is also configured to provide sufficient adjustment space for the length of the linkage 330. Specifically, the link mechanism of the present embodiment converts the rotation of the operating element 310 into the lifting movement of the pressing element 320, that is, converts the circumferential motion into the linear motion, and the pressing element 320 may be configured as a rod structure, so that the base 110 may be configured with a through hole for providing a certain guiding function for the motion of the rod. The length of the compression member 320 may be increased or decreased as appropriate to account for the depth of water in which the underwater booster 600 is being tested. In order to reduce the bending moment that may occur in the pressing member 320, the rod member is configured to have a two-stage structure or a multi-stage structure.

Referring to fig. 5, further, in the above embodiment, the operating member 310 includes an operating arm 311 and a handle 312. The operating arm 311 is provided with an operating portion and an assembling portion, the assembling portion is provided with a first rotation position 3101 and a second rotation position 3102, the first rotation position 3101 forms a rotation pair with the pressing member 320, and the second rotation position 3102 forms a rotation pair with the link 330. The handle 312 is provided in the operation portion. The operating portion of the operating arm 311 is used to connect with the handle 312, which is convenient for operation by human hand or other mechanical power members, and the assembling portion of the operating arm 311 is used to complete assembling and connecting with the adjacent components (the connecting rod 330 and the pressing member 320). Preferably, the operating portion extends to a side away from the pressing member 320, providing a sufficient space for the installation of the handle 312 and the application of an external force. Specifically, the mounting portion is provided with an L-shaped structure having a main frame and a branch, the branch being provided at one side of the main frame, the first rotation location 3101 being provided at a free end of the branch, and the second rotation location 3102 being provided at an intersection of the main frame and the branch. The moving stroke of the pressing member 320 can be adjusted by the size of the branch. In order to ensure smooth movement of the pressing member 320, the two assembling portions are symmetrically arranged, and the pressing member 320 is rotatably arranged between the two first rotating positions 3101.

Specifically, in the present embodiment, the pair centers of the link 330 and the base 110, and the pair centers of the operating member 310 and the pressing member 320 are all located on the lifting axis of the pressing member 320, which helps to maintain the movement stability of the pressing member 320 in the vertical direction. Moreover, the structure arrangement mode reduces the occupied space to a certain extent, has high structure compactness and is suitable for the clamp structure of frames. When the first rotation position 3101 is above and the second rotation position 3102 is below, the pressing piece 320 is at the highest point, and at the moment, the pressing piece is separated from the switch position 640 of the underwater booster 600 and is not contacted with the switch position 640; when the second rotation position 3102 is above and the first rotation position 3101 is below, the pressing member 320 is at the lowest point, and at this time, the pressing member abuts against the switch position 640 of the underwater booster 600. The distance between the first rotation position 3101 and the second rotation position 3102 is 2 times the lifting stroke of the pressing member 320. Therefore, the distance should be taken into consideration of the water depths of different models of underwater boosters 600 so as to adjust the size of the test fixture of the present invention, so that the test fixture can be used universally on test devices of various types of underwater boosters 600.

The operating member 310 is rotatably connected to the link 330 and the pressing member 320, respectively, and the crank of the link mechanism is a portion between the first rotation position 3101 and the second rotation position 3102. The operating element 310 is rotated to rotate the crank on the operating element 310 by 180 degrees, the pressing element 320 synchronously completes the movement from the highest point or the lowest point or the movement from the lowest point to the highest point, in the embodiment, the operating element 310 is rotated clockwise, the pressing element 320 moves from the highest point to the lowest point to press the switch position 640 of the underwater booster 600, the operating element 310 is rotated counterclockwise, the pressing element 320 moves from the lowest point to the highest point, and the switch position 640 of the underwater booster 600 is pressed in a contact manner.

Referring to fig. 5, in a preferred embodiment, linkage 330 includes a clamping arm 331 and a connecting arm 332. The holding arms 331 are provided in pairs, and the holder 100, the holding arms 331, the operating member 310, and the pressing member 320 are rotatably connected in this order. The connecting arm 332 is connected between the two holding arms 331. The pair of holding arms 331 is provided, so that the connecting rod 330 can have a pair of mounting positions with the operating member 310, and the two holding arms 331 help to ensure the stability of the rotational axis of the operating member 310 during the rotational operation of the operating member 310. In order to ensure the synchronous action of the clamping arms 331, the two clamping arms 331 are connected by the connecting arm 332, and the overall rigidity of the connecting rod 330 can be improved.

In connection with the above-mentioned embodiments, the operation member 310 is provided with the first rotation position 3101 and the second rotation position 3102, and when there are two holding arms 331, the second rotation position 3102 should be provided in two, and the operation member 310 and the link 330 have two assembly positions symmetrically. Furthermore, two assembling portions are arranged and symmetrically arranged about the pressing member 320, and the two assembling portions are respectively provided with a first rotating position 3101 and a second rotating position 3102, so that the action of the pressing member 320 is limited by the two first rotating positions 3101, unnecessary shaking of the pressing member 320 in the moving process is effectively prevented, and the stability of the pressing member 320 in the moving process can be improved.

Referring to fig. 4, in a preferred embodiment, the bracket 100 is further provided with a guide member 120, the guide member 120 includes a guide seat 121 and a clamping portion 122, the clamping portion 122 is detachably provided to the guide seat 121, the guide seat 121 and the clamping portion 122 form a guide hole with an adjustable size, and the pressing member 320 passes through the guide hole. As mentioned above, the guide 120 of the present embodiment provides support and guidance due to the large length of the compression member 320 and the relatively weak ability to withstand bending moments as a result of the water depth under which the underwater booster 600 is tested. The position of the guide 120 can be set in the middle of the guide 120, which can provide the maximum supporting effect. In the present embodiment, in order to adjust the guiding angle of the guide 120, the guide 120 is configured to be adjustable, and the tightness of the clamping portion 122 can adjust the size of the guide hole, so that the pressing member 320 can pass through the guide hole without being affected by the assembling precision and the processing precision of the pressing member 320. Specifically, the clamping portion 122 may be fixed to the guide holder 121 by a bolt. The guide hole is defined by the guide seat 121 and the clamping portion 122, and the shape of the guide hole is substantially matched with the shape of the pressing member 320. If the pressing member 320 is a round rod, the guide hole is a round hole, an arc-shaped groove can be arranged on the guide seat 121, the clamping portion 122 is provided with another arc-shaped groove, and the two arc-shaped grooves are opposite to each other to form the guide hole; it is also possible to provide the guide holder 121 or the clamping portion 122 with an arc-shaped groove separately. The guide hole is basically in the shape of a circle, an ellipse and the like, is matched with the pressing piece 320 in the shape of a round rod, and due to the structural characteristics of the cambered surface, friction generated by the guide hole and the outer wall of the pressing piece 320 is small. If the pressing member 320 is a square rod, the guide hole is correspondingly set to be a rectangular hole. Of course, the compression element 320 may be configured in other shapes to facilitate assembly and orientation for primary design adjustment purposes. Specifically, in this embodiment, the guide seat 121 is provided with an arc-shaped groove separately, the clamping portion 122 is a baffle structure, the baffle is fastened to the outer side of the guide seat 121 through screws, and the assembling tightness of the baffle determines the size of the guide hole.

Referring to fig. 4 and 6, in a preferred embodiment, the clamping position includes two clamping grooves 210 and two pressing members 220, the two clamping grooves 210 are symmetrically arranged and are adapted to the clamped portion of the underwater booster 600, the two pressing members 220 are arranged and are arranged at one side of the clamping grooves 210, and the pressing members 220 are movably abutted to the clamped portion of the underwater booster 600. Referring to fig. 2, the underwater booster 600 structurally comprises a main body 610 and wing plates 620 arranged on two sides of the main body 610, the wing plates 620 on two sides are symmetrically arranged, a holding rod 630 is arranged below the wing plates 620, the holding rod 630 is convenient for a user to hold, a switch 640 is arranged on the holding rod 630, the user holds the holding rod 630 with hands underwater, and the working mode of the underwater booster 600 can be started or changed through fingers. In combination with the previous embodiment, the second pressing rod 322 of the pressing member 320 is inserted into the holding rod 630 and aligned with the switch position 640. Therefore, the holding rod 630 is the clamped part, the holding rod 630 is arranged in the clamping groove 210, the front part of the underwater booster 600 faces to the water, and the underwater booster generates downward thrust to the water after being opened. Specifically, the wing plate 620 is always angled with respect to the axial direction of the main body 610, so that the grip groove 210 may be inclined to fit the grip 630. After the underwater booster 600 is placed in the holding groove 210, the abutting of the abutting member 220 prevents the underwater booster from coming out of the holding groove 210. The clamping groove 210 and the jacking member 220 limit the movement of the underwater booster 600 in all directions, and after the underwater booster 600 is started, the underwater booster 600 can bear the reaction force of water, so that the underwater booster 600 is kept stable in the test process, and the test precision is ensured.

Preferably, the opening of the clamping groove 210 faces upward, the clamped portion of the underwater booster 600 is placed in the clamping groove 210, and the pressing member 220 is disposed above the clamping groove 210. The clamping groove 210 is an arc-shaped groove, and a positioning groove is formed in the inner wall of the arc-shaped groove to be matched with the clamped part of the underwater booster 600.

Referring to fig. 4 and 6, further, in the above embodiment, the pressing member 220 includes a holder 221, a pressing rod 222, and a pressing member 223. The holder 221 has a first end 2211 and a second end 2212, and a positioning slot 2213 is disposed between the first end 2211 and the second end 2212. The pressing lever 222 is rotatably provided at the first end 2211, and the pressing lever 222 is provided with a positioning portion 2221. The pressing member 223 is rotatably disposed at the second end 2212, and the pressing member 223 is rotatably coupled to the pressing rod 222.

The pressing member 220 is configured to operate as follows: the pressing rod 222 rotates forward to drive the pressing piece 223 to rotate reversely and abut against the clamped part of the underwater booster 600, and the positioning part 2221 abuts against the positioning groove 2213; the pressing rod 222 rotates in the reverse direction, and drives the pressing member 223 to rotate in the forward direction and release the contact with the clamped portion of the underwater booster 600, and the positioning portion 2221 releases the contact with the positioning groove 2213. The pressing piece 220 uses the rotation of the pressing rod 222 to realize pressing or decompressing, which saves labor and is convenient for operation. Wherein, the setting mode of forward rotation and reverse rotation does: when the operator normally operates, the counterclockwise direction is the forward direction and the clockwise direction is the reverse direction when the operator is located at the side of the clamp and faces the top pressing member 220. The rotation directions of the pressing lever 222 and the pressing member 223 are always opposite.

Preferably, the free end of the pressing rod 222 is provided with a handle, the pressing member 223 includes a support rod 2231 and a pressing head 2232 provided on the support rod 2231, the pressing head 2232 is located at the free end of the support rod 2231, and the support rod 2231 is rotatably connected to the second end 2212 of the holder 221. In this embodiment, the pressing rod 222 rotates clockwise and forward, that is, the handle is pressed down, the pressing member 223 is driven and rotates clockwise and backward, the pressing head 2232 presses down and abuts against the clamped portion of the underwater booster 600, that is, the holding rod 630, and the positioning portion 2221 of the pressing rod 222 is pressed by the positioning groove 2213 to realize limiting, so that the abutting state is maintained. When the pressing state is to be released, the pressing lever 222 rotates clockwise and reversely, the handle is lifted, the pressing member 223 is driven to rotate counterclockwise and forwardly, the pressing head 2232 is lifted, the clamped portion of the underwater booster 600, that is, the holding rod 630, is released from abutment, and the positioning portion 2221 of the pressing lever 222 and the positioning groove 2213 are also separated from each other to release abutment, so that the underwater booster 600 can be taken out from the clamping position.

A ram 2232 may be mounted to the post 2231 by an adjustable screw to adjust the degree of compression on the underwater assist device 600. Preferably, the ram 2232 is configured as a circular truncated cone, and the cross-sectional area decreases from top to bottom.

In this embodiment, the positioning portion 2221 is a semicircular boss structure, the positioning slot 2213 is an arc-shaped slot, and the radian is different at different positions, the arc-shaped slot interferes with the movement track of the positioning portion 2221, so that the positioning portion 2221 can be locked, and the abutting can be released only when external force is applied.

Referring to fig. 7, in a second aspect, the invention provides a testing device for an underwater booster, which comprises a water tank 400 and a testing jig 500 arranged on the water tank 400, wherein the testing jig 500 is provided with the testing fixture for the underwater booster.

Due to the difficulty in collecting complex test data in underwater environments, in order to obtain reliable data, a small water tank 400 is used for simulating and replacing a large swimming pool, so that the environmental control capability and the test safety are enhanced. The underwater booster 600 is fixed to the fixture of the invention and further fixed on the test frame 500, a waterproof lithium ion battery is used as a driving power supply to provide working voltage required by the underwater booster 600, and a push-pull force sensor is externally connected to the test frame 500, so that the test of function related performance parameters is completed. The test jig 500 is fixed in the water tank 400, and the whole tool is small in size and convenient to install. The accessible data acquisition box uses the mode of net gape communication to gather the signal of push-pull force sensor, handles the signal of telecommunication of gathering and turns into corresponding power value, and the acquisition mode is simpler, and interference immunity is good.

Preferably, the test jig 500 is a frame-like structure, the upper edge of the water tank 400 is heightened by using a plurality of symmetrical jig bodies, and the jig bodies are overlapped with fixing rods, and the fixing rods are used for installing the underwater booster test jig of the structure.

Compared with the prior art, the technical scheme of the invention has the following advantages: the underwater booster 600 is limited by arranging the clamping position, so that the stability of the underwater booster 600 in the measuring process is ensured. The switch member 300 is arranged on the fixture, the switch member 300 comprises an operating member 310 and a pressing member 320, the operating member 310 is higher than the water surface and is used for applying external force, and the pressing member 320 can enter the water to start the underwater booster 600. The pressing member 320 is abutted to the switch position 640 of the underwater booster 600 through the operating member 310, so that the underwater booster 600 is started; the actuation of operator 310 disengages pressure member 320 from switch position 640 of subsea booster 600 and subsea booster 600 is turned off. The operation piece 310 operates on water, power is transmitted to underwater through the pressing piece 320, operation is convenient, safety is high, and the underwater booster 600 can be accurately pressed to be turned on or turned off.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an underwater booster test fixture which characterized in that includes:

a support, the support being at least partially disposed underwater;

2. The subsea booster test fixture of claim 1, wherein the compression member comprises:

3. The underwater booster test fixture as claimed in claim 2, wherein a pressing portion is provided at the bottom of the second pressure rod, the pressing portion is formed by extending the second pressure rod to a switch position of the underwater booster, and the thickness of the pressing portion is gradually reduced along with the extending direction.

4. The underwater booster test fixture as claimed in claim 1, wherein the operating member and the pressing member are connected by a connecting rod, and the support, the connecting rod, the operating member and the pressing member are sequentially rotatably connected.

5. The subsea booster test fixture of claim 4, wherein the operating member comprises:

a handle disposed on the operating portion.

6. The subsea booster test fixture of claim 4, wherein the linkage comprises:

and the connecting arm is connected between the two clamping arms.

7. The underwater booster test fixture of claim 1, wherein the support frame is further provided with a guide member, the guide member includes a guide seat and a clamping portion, the clamping portion is detachably disposed on the guide seat, the guide seat and the clamping portion form a guide hole with adjustable size, and the pressing member passes through the guide hole.

8. The subsea booster test fixture of claim 1, wherein the clamping location comprises:

9. The underwater booster test fixture of claim 8, wherein the jacking member comprises:

10. The underwater booster testing device is characterized by comprising a water tank and a testing frame arranged on the water tank, wherein the testing frame is provided with the underwater booster testing clamp as claimed in any one of claims 1 to 9.